Physician

Allan Walter Barbish, M.D.

According to 2025 Medicare claims, Allan Barbish, M.D. (NPI: 1891743191) practices gastroenterology in the Kalamazoo-Portage, MI market, with the plurality of this provider's patient population coming from Kalamazoo, MI. This provider's primary affiliated billing organization is BRONSON METHODIST HOSPITAL (NPI: 1417961137; TIN: 381359087) and primary practice location at 49024-7430.

Barbish's data goes back to 2015 and runs through 2024. For example, in 2024, this provider had 268 traditional Medicare patients, billed 326 HCPCS/CPT codes, and received $39,354 in Medicare payments. The top billing code was 45385 (Removal of polyps or growths of large bowel using an endoscope with mechanical snare). Part D data shows 546 prescription claims across 268 beneficiaries totaling $82,408 in drug costs, led by Creon (Lipase/Protease/Amylase). Open Payments data shows 6 records totaling $125. You can download detailed data with all billing codes (2015-2024). For more recent data, please contact us.

Over the past 10 years, this provider's Medicare Part B carrier billing has changed little. Concurrently, Part D prescription costs have moved sharply higher in recent years, from $26,584 to $82,408. For DME billing, this provider has fewer than 5 years of reported data, so a reliable trend cannot be assigned.

Part B Carrier Billing Trend

Medicare payment trend, with N of patients and claim lines in the table.

Year	Patients	Clm Lines	Payment
2015	271	472	$45,371
2016	283	536	$49,835
2017	285	635	$52,005
2018	265	567	$48,125
2019	315	526	$45,948
2020	283	468	$45,026
2021	313	475	$48,369
2022	266	401	$43,874
2023	286	366	$41,137
2024	268	326	$39,354

Part D Events Trend

Drug cost trend, with N of patients and prescription claims in the table.

Year	Patients	Claims	Drug Cost
2015	120	307	$26,584
2016	146	479	$39,801
2017	153	557	$45,976
2018	186	571	$71,640
2019	224	623	$108,516
2020	254	508	$68,926
2021	190	444	$58,799
2022	217	545	$142,956
2023	220	546	$132,562
2024	268	546	$82,408

DME Billing Trend

Medicare payment trend, with N of patients and DME claim records in the table.

No connected DME records

* / # = suppressed by CMS; 0 = reported zero; N/R = not reported or blank.

Top 5 Part B carrier billing codes in 2024

By total payments.

Code	Description	Patients	Clm Lines	Total Payment
45385	Removal of polyps or growths of large bowel using an endoscope with mechanical snare	42	42	$193
G0105	Colorectal cancer screening; colonoscopy on individual at high risk	28	28	$177
G0121	Colorectal cancer screening; colonoscopy on individual not meeting criteria for high risk	33	33	$166
45380	Biopsy of large bowel using a flexible endoscope	79	79	$113
43239	Biopsy of esophagus, stomach, and/or upper small bowel using a flexible endoscope	62	65	$88

Top 5 Part D drugs in 2024

By total drug costs.

Drug	Generic	Claims	Total Day Supply	Total Drug Cost
Creon	Lipase/Protease/Amylase	16	665	$35,407
Mesalamine	Mesalamine	22	1,312	$15,458
Pantoprazole Sodium	Pantoprazole Sodium	175	11,895	$3,555
Gavilyte-G	Peg3350/Sod Sulf,bicarb,cl/Kcl	66	70	$1,343
Omeprazole	Omeprazole	61	4,078	$1,338

Top 5 DME services in 2024

No connected or detailed DME service-level records for 2024.

Open Payments Summary in 2024

Category	Definition	Records	Total Reported Amount	Top Related Entity
General Payments	Reported payment or transfer-of-value amount.	6	$125	Takeda Pharmaceuticals U.S.A., Inc.
Research Payments	Reported research-related payment or transfer-of-value amount.	0	$0	N/R
Ownership / Investment Interests	Reported value of ownership or investment interests.	0	$0	N/R

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FAQ

What Medicare data is available for Allan Walter Barbish, M.D.?

Tedicare shows public-source Medicare data for Allan Walter Barbish, M.D. (NPI 1891743191), including provider identity, specialty, market context, Medicare Part B activity, Part D prescribing, DME records, Open Payments where available, billing organization details, and ACO affiliation signals where available. Profile data covers 2015-2024, with current attribution based on 2025 claims where available.

Does Allan Walter Barbish, M.D. have ACO affiliation data?

No ACO affiliation record is shown in the available Tedicare data for this profile.

What billing organization is linked to Allan Walter Barbish, M.D.?

Allan Walter Barbish, M.D. is linked to BRONSON METHODIST HOSPITAL (billing NPI 1417961137) in the available physician profile data.

Does Allan Walter Barbish, M.D. have Open Payments data?

Allan Walter Barbish, M.D. has 6 connected Open Payments records in the available 2024 summary data.

Can I download physician-level Medicare data from Tedicare?

Yes. Tedicare provides sample physician export data and paid custom physician data exports for research, planning, outreach, and market analysis. Exports can include physician profile fields, market and specialty context, billing organization details, ACO affiliation signals where available, and Medicare utilization data.